The calculated distance (air line) between Trans-en-Provence and Aix-en-Provence is approximately 52 miles respectively 84 kilometers.
By car or train, the actual journey to Aix-en-Provence is certainly longer, as only the direct route (as the crow flies) between Trans-en-Provence and Aix-en-Provence has been calculated here.
Air line (approximately)
84 kilometers
45 nautical miles